Yeah partly why its not really an option, I'm thinking there has to be some sort of alternative that isn't very expensive.

 

Throwing "cheap" into the equation might make it hard.

 

I think my perspective of "cheap" isn't what most people consider cheap, but $900 for a pump when the bike kit itself is $1400 is a little excessive.

 

I'm sure you guys have seen this, but it is 160cc and from what I have heard spools up the turbo at least..
http://sdsefi.com/features/apr00stool.htm
Also I have seen a self contained turbo that is pretty small that some company in europe makes, I think they come on kits for the focus possibly..Either way no oil or collant lined to worry about and it had an adj internal w/g to allow different boost levels..I was thinking of slapping something like that on my gsxr 750

 

Well, the way the bearings on the two turbos I've seen work, you need pressure to float the bearing races, but not too much to blow by the seals..

I think I'm going to start by experimenting with a walbro pump and see if it works or burns up, at least that should work long enough to test it.

I like the mechanical pump idea of that site you posted for the bar-stool, but I haven't seen if there is an easy way to take-off one of the side covers and attach a pulley to it. So I'm going to work my way into the approach simply.

Really the hardest part of the entire project is the engine swap as the stock engine is a horizontal and the new motor is somewhat larger and has a vertical cylinder, I"m still not 100% sure it will fit.

 

The new turbo showed!! IHI RHB31

Their both nearly identical except for the flanges..

This turbo has a flange on its inlet that is about 2-3mm off on its bolt spacing from the carburetor.. if I elongage the holes on the carb's flange, it will BOLT UP TO THE TURBO! NO custom pipe or flanges!

I just need to find a phenolic spacer about the right size as the turbo inlet thats 1/2" thick or so..

 

good lord that turbo is tiny!

 

Yeah it is, trying to find an already-available aftermarket dump-pipe from a diahatsu so I don't have to fabricate the dump portion of the exhaust.

Finding flanges is not that easy for this thing, I know their out there, and would prefer to buy a few than have a dozen cut on a water-jet after making templates.

 

I ordered a few pumps, one small pump to circulate coolant if I need to, and one pump specifically designed to circulate hot viscous oils.. The pump is about 6" long, I think it might end up being a bit large, but I am bringing it over from Europe as it was a bargain anyway.

I have a second turbo showing shortly, its the one from Japan that I was waiting on a response from, this one is an RHB3, the one I already have is an RHB31 I want to see which of the two is better suited for the small displacement. Unfortunately their pretty much the same turbo, only the flanges are slightly different for the turbine inlet.

In the time I am waiting for my Kikker kit, I had come across a full sized motorcycle rolling chassis that is within the price range I had set for the project. If it comes through you'll see this engine running on a harley style chassis using a jackshaft setup.

Who knows, the engine is here, the turbo is here, I am drawing up the templates for the machine shop to either water-jet or laser cut the different flanges. Now I just need to get a MIG tank, or pick up a TIG welder and tank, I'm out of practice on both and am concerned I'll set my garage on fire.. LOL

Another thing I'm looking at is a fuel pressure regulator to use to regulate the oil pressure and bypass the residual back to the tank, this way I can have two outputs, one high pressure lower volume to the Turbo, a second output to always circulate oil through the cooler. Since this turbo uses journal bearings I need pretty high oil pressure but something adjustable to keep the oil from blowing past the seals.

Both of these turbos appear to have coolant passages, I don't mind making a plate and circulating coolant, but that adds additional hardware to maintain a constant temp, Its too bad I can't leverage this to also cool the engine (it appears to have a coolant passage on the head, but no apparent return that I can find. Unfortunately I had also hoped I could use the engines oil pump to circulate oil to the turbo, its still a possibility but very few people know the Lifan engine (Honda 200cc copy) all that well to be able to point me in the right direction.

 

Oh well, another project bump...

I have a few pumps to work with on the way as mentioned in the thread. I cancelled the order for the Kikker expecting to buy a rolling chassis kit for a larger bike, since its a proof of concept the weight wasn't really a concern. Then I came across an auction for an In-Stock Kikker Hardknock kit and ordered it. I should have it in a few days.

I have also contacted several companies that claim to offer small displacement engine EFI systems, Hopefully they can come through with something that is both small and does the job. One has a really nice throttlebody/fuel injector housing setup as once piece, obviously intended as a retrofit.

Not only is it difficult finding the parts, but finding parts small enough to hide away on a mostly naked bike. Though I do plan on doing this "Indian Larry" style and making the form and function visible, which means making it very attractive and unobtrusive, plus not look out of place on a simple old-school looking bike.

But we'll see, I have gotten some feedback from several vendors of the 110cc Kikker with a horizontal engine, that the vertical engine should fit in the frame (and there was some speculation that it was originally designed with this engine in mind, but DOT/EPA legalities forced them to use the smaller engine so it can be registered legally as a moped or scooter)


I do have another frame/title from a Honda CB350 that should fit this engine just in case I cannot get the kikker's frame to work. In reality I bought it for the VIN# title and Neck as its a 1969 and would serve well as a future special construction project and make my life easier getting it registered.

 

BTW, Nothing goes to waste here in my shop, the 110cc engine being removed from the kit is going into a small pit bike chassis or some other toy that I can put together for my son for when he's a little older..

 

insane idea ;-)

 

Sounds like a good go-kart motor.

 

found another small turbo project. turbokart.com